The WBCA5-433.5-452-455-473.5-90 from Wainwright Instruments is a Band Pass Filter with Frequency 452 to 455 MHz, Bandwidth 3 MHz, Center Frequency 453.5 MHz, Insertion Loss 0.45 to 0.5 dB, Rejection 90 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCA5-433.5-452-455-473.5-90 can be seen below.